Counterbores (1,500+ items)
Key Features:
- Size: 5/8 in
- Overall Length: 5-1/8"
- Shank Dia.: 1/2 in
Key Features:
- Item: High Speed Steel 3Flute Solid Pilot Coun
- Package Quantity: 1
Key Features:
- Package Quantity: 1
Key Features:
- Item: Cutting Tool
- Package Quantity: 1
Key Features:
- Item: Counterbore For Interchangeable Pilot
- Overall Length: 3 13/16 in
- Shank Dia.: 19/64 in
Key Features:
- Package Quantity: 1
Key Features:
- Item: Carbide Tipped Cutting Tool
- Package Quantity: 1
Key Features:
- Package Quantity: 1
Key Features:
- Size: 1-3/4 in
- Overall Length: 8-1/8"
- Shank Dia.: 4MT
Key Features:
- Item: Counterbore
- Overall Length: 4 1/2 in
- Shank Dia.: 5/16 in
Key Features:
- Package Quantity: 1
Key Features:
- Item: Cutting Tool
- Package Quantity: 1
Key Features:
- Item: Carbide Tipped Cutting Tool
- Package Quantity: 1
Key Features:
- Size: 7/32 in
- Overall Length: 1-1/4"
- Shank Dia.: 3/32 in
Key Features:
- Item: Cutting Tool
- Package Quantity: 1
Key Features:
- Item: Carbide Tipped Cutting Tool
- Package Quantity: 1
Key Features:
- Size: 13/16 in
- Overall Length: 3-1/8"
- Shank Dia.: 1/4 in
Key Features:
- Item: Carbide Tipped Cutting Tool
- Package Quantity: 1
Key Features:
- Overall Length: 3.5000" (3-1/2)
- Shank Dia.: 0.6250" (5/8)
- Material - Machining: Carbide
Key Features:
- Item: Aircraft Length Counterbore with Interchangeable Pilot
- Overall Length: 2 3/8 in
- Shank Dia.: 1/4 in
Key Features:
- Size: 1/2 in
- Overall Length: 2-3/8"
- Shank Dia.: 3/8 in
Key Features:
- Overall Length: 1.5000" (1-1/2)
- Shank Dia.: 0.1250" (1/8)
- Material - Machining: Carbide
Key Features:
- Size: 5/8 in
- Overall Length: 2-1/8"
- Shank Dia.: 5/16 in
Key Features:
- Item: Counterbore with Built-In Pilot
- Overall Length: 4 1/2 in
- Shank Dia.: 3/8 in
Key Features:
- Size: 7/16 in
- Overall Length: 1-7/8"
- Shank Dia.: 1/4 in
Key Features:
- Size: 1/2 in
- Overall Length: 1-3/4"
- Shank Dia.: 3/16 in
Key Features:
- Item: High Speed Steel 3Flute Solid Pilot Coun
- Package Quantity: 1
Key Features:
- Item: Counterbore with Built-In Pilot
- Overall Length: 4 1/2 in
- Shank Dia.: 3/8 in
Key Features:
- Overall Length: 7-1/2"
- Shank Dia.: 3/4 in
- Material - Machining: High Speed Steel
Key Features:
- Item: M6X6.6mm Hss 3Flute Straight Shank Sol
- Package Quantity: 1
Key Features:
- Overall Length: 2.5000" (2-1/2)
- Shank Dia.: 0.3750" (3/8)
- Material - Machining: Carbide
Key Features:
- Overall Length: 1/64 o/s
- Number of Flutes: [delete]
- Size: 3/4
Key Features:
- Item: High Speed Steel 3Flute Solid Pilot Coun
- Package Quantity: 1
Key Features:
- Item: Carbide Tipped Cutting Tool
- Package Quantity: 1
Key Features:
- Package Quantity: 1
Key Features:
- Item: Counterbore For Interchangeable Pilot
- Overall Length: 5 3/8 in
- Shank Dia.: 1/2 in
About Counterbores
Counterbores are specialized tools utilized in creating enlarged, flat-bottomed holes in various materials, primarily metal. They're essential when a fastener's head needs to be level with or beneath the surface of the worked material. Available in an array of sizes and shapes, these tools can accommodate diverse types of fasteners and feature different tip configurations like straight flute or spiral flute based on their intended use. Counterboring speeds differ according to the material being processed. These durable tools are typically crafted from high-speed steel (HSS) or cobalt steel for enhanced cutting performance, sometimes coated with titanium nitride (TiN) for superior wear resistance and lubricity when dealing with tougher materials such as stainless steel or aluminum. Industries ranging from automotive manufacturing and aerospace engineering to medical device production widely employ counterbores for precise hole creation necessary for mounting screws and other fasteners.